Pattern mechanism for looms.



J. T. GYR.

PATTERN mnommsm FOR LOOMS.

I APPLICATION FILED TERA, 1919. 960,21Q Patented May 31, 1910.

2 SHEETS-SHEET 1.

Wibwcoo'co amen/who's J. T. cm PATTERN MECHANISM FOR LOOMS.

APPLICATION FILED IBBA, 1910.

960,214. Patented May 31, 1910.

2 SHEETS-SHEET 2. v

UNITE SATES PATT FIQ.

JOSEPH T. CYR', OF WORCESTER, MASSACHUSETTS, AS-SIGNOR T0 CROIVZPTON &KNOWLES LOG-M WORKS, A CORPORATION OF MASSACHUSETTS.

PATTERN MECHANISM- FOR LOOIVIS;

Specification of Letters Patent.

Patented May 31, 1910.

Application filed February 4, 1910. Serial No. 541,972.

To all whom it may concern:

Be it known that I, JOSEPH T. CYR, a citizen of the United States,residing at IVorcester, in the county of W'orcester and State ofMassachusetts, have invented certain new and useful Improvements inPattern Mechanism for Looms, of which the following is a specification.

My invent-ion relates to pattern mechanism for looms, and moreparticularly to pattern chains, made up of bars connected by links, andcarrying rolls and tubes thereon, forming the pattern surfaces orindicators. The ends of the bars, ordinarily with tubes thereon, fitinto notches or recesses in the heads of the pattern cylinder. Therevolution of the pattern cylinder, through the engagement of the endsof the bars with the notches or recesses in the cylinder heads, causesthe movement or rotation of the pattern chain.

In pattern chains of the class referred to, and particularly in case ofshort chains, the chains will sometimes become disarranged on thepattern cylinder, or entangled by winding on the cylinder, by reason ofthe ends of the pattern chain bars getting caught in, or not properlypassing out of the notches or recesses in the pattern cylinder heads.

The object of my invention is to provide a supplemental attachment ordevice, adapted to be combined with a box pattern chain, or harnesspattern chain of the class referred to, and particularly with the endsof the pattern barrels or cylinders, to extend into the path of, and beengaged by the links of the pattern chain, which connect the barscarrying the tubes and rolls, and act to raise the ends of the bars outof the notches or recesses in the pattern cylinder heads, and cause thechain to remain in its proper position on the pattern cylinder.

My supplemental attachment or device for pattern chains, which I term apattern chain stripper, is preferably loosely mounted on the patterncylinder shaft or barrel, and is held from turning around on the patterncylinder shaft or barrel with the pattern cylinder.

My invention consists in certain novel features of construction of myimprovements as will be hereinafter fully described.

I have only shown in the drawings a detached portion of the well knownKnowles head motion for looms, shown and described in Reissue LettersPatent, No. 7,784, showingv the box. and harness pattern chain cylindersand chains, with my improvements applied thereto.

Referring to the drawings :Figure 1 is a sectional elevation through theKnowles head motion, and the harness pattern chain cylinder, taken at apoint indicated by line 1, 1, Fig. 2, looking in the direction of arrowat, same figure. Fig. 2 shows, on an enlarged scale, the boX and harnesspattern chain cylinders, and chains, detached, and as a section, on line2, 2, Fig. 1, looking in the direction of arrow 6, same figure, and,Fig. 3 is an end view of the boX and harness pattern chain cylinders,and chains, and a section, on line 3, 3, Fig. 2,v looking in thedirection of arrow 0, same figure.

In the accompanying drawings, 1 is the loom arch, 2 the stand securedthereto for supporting the several parts of the Knowles head motion,above referred to.

The head motion comprises the upper cylinder gear 3, fast on thecylinder gear shaft 4, the lower cylinder gear 5, fast on the lowercylinder gear shaft 6, the vibrator gears 7 intermediate the cylindergears 3 and 5, the vibrator levers 8, which are pivotally mounted attheir outer ends on the transverse rod 9, and carry the vibrator gears 7on their inner ends, in. the usual way.

The vibrator levers 8 are raised and lowered by the harness patternchain 10, which is supported on the rotary pattern chain cylinder 11,having heads or ends 11, with notches or recesses 11 therein, and madeup of rolls 10, and tubes 10", mounted on bars 10', connected by linksl0 in the usual way. The ends of the bars 10",

having in this instance the tubes 10 there-- on, fit into the notches orrecesses 11" in the heads 11 on the pattern cylinder 11, and therevolution of the pattern cylinder 11, causes the revolution of thepattern chain 10. A chain support or guide 12, suitably secured on theloom arch 1, is adapted to support the chain 10.

The boX patternchain 13 is made up of rolls 13 and tubes 13", mounted onbars 13', connected by links 13 in the usual way.

he box pattern chain 13 is mounted on the rotary pattern cylinder 14,having heads 14 with notches or recesses 14 therein, for

the ends of the bars 13", which in this instance have tubes 13 thereon,

The pattern chain cylinders 11 and 14, are in this instance made in onepiece or barrel, with reduced outer ends forming journals, see Fig. 2.

All of the above mentioned parts may be r of the usual and well knownconstruction in the class of looms referred to.

I will now describe my improvements. I provide each pattern chaincylinder 11, and 14, at its outer end, with a device termed a chainstripper, which in this instance consists of a block 15, which looselyengages the end of the chain cylinder barrel or shaft, and is heldthereon by a cap 16, see Fig. 3, which is made curved at one end topartially encircle the end of the chain cylinder, and secured at itsother end by a screw 17 to the block 15. The block 15 has in thisinstance an engaging surface 15, over which the links of the patternchain pass. A boss 15 on each guide device 15 is adapted to receive oneend of a transverse rod 18, which connects the two chain strippers 15together. A screw 19 secures the ends of the rod 18 in the bosses 15".

In connection with the two chain strippers 15, at the outer ends of thebox, and harness pattern chain cylinders, I use a chain stripper for theinner ends of the box, and harness pattern chain cylinders, whichconsists in this instance of a boss 20 secured on the rod 18 by a screw18, and two upwardly extending arms 20 having yokeshaped ends, whichloosely engage the pattern barrel, between the inner heads of thepattern cylinders 10 and 13, as shown by broken lines in Fig. 1, and athird arm 20", which is offset and extends downwardly from the hub 20,and has the weighted end 20 thereon, which extends within the patternchain 10 of the harness section, as shown, and rests on the inner partof the pattern chain, and acts to hold the blocks 15 and arms 20 inposition, and prevent their rotating with the pattern chains. The arms20 of the center chain stripper extend in the path of the inner links 10and 13 of the pattern chains 10, and 13, and as said chains rotate, thepassing of said links over said arms, causes the stripping or removal ofthe inner ends of the bars 10", and 13 from the notches or recesses inthe cylinder heads on the inner ends of the pattern cylinders. passingof the outer links 10 and 13 of the chains 10, and 13, over the blocks15, causes the stripping or removal of the outer ends of the bars 10 and13 from the notches or recesses in the cylinder heads on the outer endsof the pattern cylinders.

It will be understood that the details of construction of myimprovements may be varied if desired.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. In pattern mechanism for looms of the class described, thecombination with a pattern cylinder, and a pattern chain, of a pluralityof chain strippers, having portions to loosely engage the patterncylinder barrel or shaft, a rod or device to connect said strippers, andan arm on one of said strippers within the fold of the pattern chain, toprevent the revolution of said strippers.

2. In pattern mechanism for looms of the class described, thecombination with a pattern cylinder, of a device to prevent the windingof the pat-tern chain on the pattern cylinder, said device having partsto loosely embrace portions of the pattern cylinder, and means toprevent the rotation of said device with the cylinder.

3. In pattern mechanism for looms of the class described, thecombination wit-h a pattern cylinder, of a device to prevent the windingof the pattern chain on the pattern cylinder, said device having partsto loosely embrace portions of the pattern cylinder, and means toprevent the rotation of said device with the cylinder, said meanscomprising a weighted arm extending within the fold of the patternchain.

J OS. T. GYR.

Witnesses:

JOHN C. DEWEY, MINNA HAAS.

In the same manner the

